Cmake is doing a lot of underappreciated work under the hood that would be very hard to replicate in another tool, tons of accumulated workarounds for all the different host operating systems, compiler toolchains and IDEs, it's also one of few build tools which properly support Windows and Visual Studio.

Just alone reverse engineering the Xcode and Visual Studio project file formats for each IDE version isn't fun, but this "boring" grunt work is what makes cmake so valuable.

The core ideas of cmake are sound, it's only the scripting language that sucks.